P2174 Volvo Low Airflow/Restriction Detected Instantaneous Accumulation

Possible causes

– Restricted air inlet
– Open or short circuit condition
– Failed Manifold Absolute Pressure (MAP) sensor
– Failed Throttle Position (TP) sensor

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)

P2174 Volvo Description

The calculated Manifold Absolute Pressure (MAP) value is greater than the expected MAP value